North Vietnam, Friendship between Vietnam and China, October 1st, 1965; Michel Nr. 399-400; Two stamps both in the 12 xu nominal were issued perforated 11.0.

Here is the mint set:

Mint blocks of four:

These stamps were not officially released im-perforated but a handful of im-perforated trial proofs have come to market. Note the five print colors and the printing guide marks surrounding the stamps.

Here are the imperforate trial proofs without the printing guide marks.

Printing errors are rare on this issue but did occur. Here is an im-perforated trial print that shows a significant shift of the red printing phase.

Perforated stamp on which the entire black color phase is missing. Listed in Michel but much rarer than the price of €100 suggests. The editor has not seen this error offered in the market in the past 20 years.

Rare single franking of the 12xu value on a letter to Budapest, Hungary.

Rare express mail letter with a pair of the 12 xu stamp sent to Klewitz from November, 1970. The overall franking amounted to 148 Xu or 1.48 Dong which was slightly below the required tariff of a registered express mail letter to West Germany (1.60 Dong tariff). This example goes to show that not all postal clerks were familiar with the entire tariff structure.

Letter mailed to Theo Klewitz in October of 1965 featuring the set. The overall franking amount to 64 xu which is in excess of the required standard letter rate to West Germany of 50 xu.

Mixed franking of the 50xu value plus one of the 12xu Vietnam China Friendship stamp for an overall postage of 1.12D. Mailed in a small post office of Hai-Ba. The standard letter tariff to East Germany was only 12xi so this letter must have been much heavier than normal.

Registration Nr. 101180

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